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      08-30-2015, 04:05 PM   #1
nachob
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VO Might be Faster but AW sounded Better!

Disclosure, just attention getting headline! : )

Seriously though, my July build AW 1M had a gnarly cold start every morning. It would go up to around 1500 RPM and shake the whole house. It would hold it for several seconds then take a step down to about 1200 RPM, then another stop down to about 800 RPM, then idle. You could also hear it a block away. I pick up my German mechanic best friend every Saturday for cars and coffee at 5 am and he could hear my old AW 1M coming a block away. Now my August build, bone stock Canadian 1M only holds the cold start at about 1100 RPM and quickly drops to 800, then idle in a matter of seconds. No house shaking roar. I picked him up yesterday and he didn't hear me coming until I turned up his street at 5 AM.

Is anyone away of an exhaust or engine management system flash that affected cold start and or exhaust sound in later build 1Ms?

The current VO 1M is supposedly identical to my old AW unit and even has the US EPA and California CARB decal so I doubt it's much different.

I am wondering if anyone had some sort of software flash that changed their cold start behavior? The cold start roar was my favorite part of the 1M.

Thanks.
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      08-30-2015, 04:30 PM   #2
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Sorry, Canadians are much more sedate and better behaved than Americans.
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      08-30-2015, 04:58 PM   #3
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My September build VO does the same thing as your original AW. I'm sorry but your new car has the seldom talked about "Quiet Package" or ZQP.
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      08-30-2015, 05:01 PM   #4
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Quote:
Originally Posted by OrangeCrush View Post
My September build VO does the same thing as your original AW. I'm sorry but your new car has the seldom talked about "Quiet Package" or ZQP.
Yes, probably the "speak softly, carry big stick" package."
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      08-30-2015, 05:03 PM   #5
nachob
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I figured some did. I just wonder if maybe some got a reflash that altered the cold start behavior. For example, my old ZHP used to pause at 3200 rpm during WOT pull but I got it reflashed a couple of months ago and it went away.
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      08-30-2015, 06:12 PM   #6
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Quote:
Originally Posted by OrangeCrush View Post
My September build VO does the same thing as your original AW. I'm sorry but your new car has the seldom talked about "Quiet Package" or ZQP.
November build here and still waking the neighbors daily.

Love it.
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      08-30-2015, 06:39 PM   #7
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Porsche often swaps out rear cans for Canada where noise restrictions are a bit tougher.
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      08-30-2015, 07:25 PM   #8
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Get the mad dad mid pipe!
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      08-30-2015, 09:08 PM   #9
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I have the same thing as your old AW did.....sounds crazy on startup....interesting why you don't have it in the new car....
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      08-30-2015, 10:02 PM   #10
nachob
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One more question guys because I can't recall. I believe the Canadian 1Ms have daytime running lights so both sets of rings and the headlights are always on. I thought only the rings lit up on the US version but it's been so long I can't remember. Can you guys refresh my tired old memory?
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      08-30-2015, 10:27 PM   #11
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U.S. car only rings and eyebrow.
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      08-30-2015, 10:41 PM   #12
nachob
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Originally Posted by ayao View Post
U.S. car only rings and eyebrow.
Thanks. So next step is figuring out how to change that!

: )
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      08-30-2015, 11:18 PM   #13
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I'll bet you alex@alpinemss could code it out for you remotely ...
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      08-30-2015, 11:19 PM   #14
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Quote:
Originally Posted by nachob View Post
Thanks. So next step is figuring out how to change that!

: )
Figured it out. Turned off Daytime Running Lights via stalk, now only the rings stay on. Not too bad. I looked for a ROAR symbol to see if I could bring back cold start roar but didn't find one. I think Champignon is right, Canadians are just a bit more low key!

: )
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      08-30-2015, 11:20 PM   #15
champignon
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Quote:
Originally Posted by nachob View Post
Thanks. So next step is figuring out how to change that!

: )
Or, leave it alone and consider it your contribution to cross-border relations
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      08-30-2015, 11:20 PM   #16
nachob
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Quote:
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I'll bet you alex@alpinemss could code it out for you remotely ...
Thanks, got it done via stalk but if Alex can code the cold start roar back, I might look him up.
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      08-30-2015, 11:21 PM   #17
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Or, leave it alone and consider it your contribution to cross-border relations
I still have Canadian plates on, that's my contribution. Did you turn them off your Canadian one or leave them on?
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      08-31-2015, 12:19 AM   #18
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Only halos on as DRL here on Nov build Canadian car

And I think my car behaves like your AW... not sure if can be heard blocks away but when I start it in the morning inside the garage, it can be heard from anywhere in my house and caused resonance..
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      08-31-2015, 12:35 AM   #19
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Quote:
Originally Posted by nachob View Post
I still have Canadian plates on, that's my contribution. Did you turn them off your Canadian one or leave them on?
My car did not come with Canadian plates, although the documents sent with the car included a Quebec temporary registration. I showed it to the lady at the local DMV. She laughed, and said I should be prepared to show my (Canadian) passport if I get stopped by police
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      08-31-2015, 01:01 AM   #20
nachob
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Quote:
Originally Posted by champignon
Quote:
Originally Posted by nachob View Post
I still have Canadian plates on, that's my contribution. Did you turn them off your Canadian one or leave them on?
My car did not come with Canadian plates, although the documents sent with the car included a Quebec temporary registration. I showed it to the lady at the local DMV. She laughed, and said I should be prepared to show my (Canadian) passport if I get stopped by police
Sorry. I meant daytime running lights. Did you keep them?
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      08-31-2015, 05:34 AM   #21
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Hi nachob, congrats on your second 1M purchase. About the "issue", I would tend to try to figure out reasons for that because as far as I know all 1Ms regardless of specification (I mean Euro or North American, Chinese market might be different) had the cold start like your AW car. When I had the 1M I kept it bone stock for some time and then slowly modded the car up to a point I decided not to pass, essential modded items should still be visible in my sig. Even after all of those installed (most relevant ones as N55 mids, Evolve Race muffler, Evolve intercooler, ER charge pipe, aftermarket air filter) and I assume precisely because I did not change the stock tune and never touched the ECU, the car behaved identical at cold start till the day I sold it.

There was one exception to this and it was right after the stupid Chilean BMW service flashed the car's software for no reason when the car was almost brand new and was left there for some minor install works like steel pedal set! The car started and sounded very different (quiet and erratic) and even performed pretty bad after that, I would say for 2-3 days but when I was about to get really worried it just changed to normal.

I don't think there is anything different with the "Canadian" 1Ms, there might be something installed and then de-installed by the previous owner or some dealer like in my case could mess with the software of the car. I also advice you to find another bone stock 1M in your area and listen to it side to side just to make 100% sure because sometimes waiting that long for finding another 1M and missing your old car could have altered your memories as well

EDIT: Mine was also August 2011 build.
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Last edited by ozinaldo; 08-31-2015 at 05:42 AM..
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      08-31-2015, 07:59 AM   #22
nachob
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Quote:
Originally Posted by ozinaldo
Hi nachob, congrats on your second 1M purchase. About the "issue", I would tend to try to figure out reasons for that because as far as I know all 1Ms regardless of specification (I mean Euro or North American, Chinese market might be different) had the cold start like your AW car. When I had the 1M I kept it bone stock for some time and then slowly modded the car up to a point I decided not to pass, essential modded items should still be visible in my sig. Even after all of those installed (most relevant ones as N55 mids, Evolve Race muffler, Evolve intercooler, ER charge pipe, aftermarket air filter) and I assume precisely because I did not change the stock tune and never touched the ECU, the car behaved identical at cold start till the day I sold it.

There was one exception to this and it was right after the stupid Chilean BMW service flashed the car's software for no reason when the car was almost brand new and was left there for some minor install works like steel pedal set! The car started and sounded very different (quiet and erratic) and even performed pretty bad after that, I would say for 2-3 days but when I was about to get really worried it just changed to normal.

I don't think there is anything different with the "Canadian" 1Ms, there might be something installed and then de-installed by the previous owner or some dealer like in my case could mess with the software of the car. I also advice you to find another bone stock 1M in your area and listen to it side to side just to make 100% sure because sometimes waiting that long for finding another 1M and missing your old car could have altered your memories as well

EDIT: Mine was also August 2011 build.
Thanks Ozi. I'll try to find another 1M but I even made a video for my brother in law of the white one cold start and it's clearly louder and sustains the higher RPMs longer than current one. It's not a horrible issue but just really liked it. What are you driving now?
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